Pneumonectomy is known as an effective treatment of lung cancer, lung tuberculosis, and damaged lung. But the incidences of complications and mortality are significantly higher in patients undergoing pneumonectomy than those undergoing lobectomy. The complication rate within 30 days after pneumonectomy is 11%-49% and the mortality is 3%-25%. Mortality of right pneumonectomy is triple that of left pneumonectomy. Postpneumonectomy complications include cardiopulmonary failure, bronchopleural fistula and postpneumonectomy syndrome. Besides the symptomatic treatment, which includes flushing drainage, plugging and operation, observation and prompt diagnosis are necessary for prevention. This review is focused on the prevention and treatment of complications after pneumonectomy.
ObjectiveTo explore the effectiveness of Ovol2 gene for epithelial-mesenchymal transition (EMT) to offer some theory evidences for the targeted therapy in lung adenocarcinoma. MethodsA549 cells were treated with control and Ovol2 overexpressioned by lentivirus infection. Real-time PCR were performed to test the mRNA level of genes correlated to EMT. Western Blot was performed for protein level of the following makers:E-cadherin, N-cadherin, vimentin, ect. Moreover, we tested the migration and invasion ability of A549 cells by transwell and wound healing experiment. ResultsAfter treated with Ovol2 overexpressed, the expression level of E-cadherin raised, while the expression level of N-cadherin, vimentin and Twist1 declined in both mRNA and protein expression level. The results of wound healing and transwell experiment indicated that the migration and invasion ability of A549 cells weakened. ConclusionOverexpression of Ovol2 gene can suppress the distant metastasis ability and invasion ability of A549 cells by inhibiting the EMT.